A map showing the path of the "unresponsive aircraft." NORAD An "unresponsive" plane that entered Cuban airspace on Friday and later crashed belonged to the owner of Buckingham Properties, a company that calls itself as "Rochester, New York's largest and most diverse real estate development and property management company."

Glazer cofounded Buckingham in 1970. In July, Rochester City Newspaper published a profile of Glazer that began by saying, "Much of what you see when you catch a glimpse of the city's skyline is part of Larry Glazer's real estate empire. His biography on the Buckingham Properties website says Glazer began his career managing a private hedge fund after getting a master's degree in finance at Columbia University in 1969. He became the CEO of a Rochester-based printing company in 1971 and began focusing on real estate when it was sold 12 years later.

The plane took off from Greater Rochester International Airport. Ted Soliday, the executive director of the Naples Airport Authority, told Business Insider it was scheduled to land in Naples, Florida, at 2:20 p.m. Soliday said the plane's owner was a "regular customer" who would fly through the airport every few months and bought fuel there.

"The last time they were here was July 6 — two months ago," Soliday said.

Glazer's biography on the Buckingham Properties site ended with a description of his family life and flying:

"Larry spends some of his spare time on the ground — gardening around his house with his wife, Jane; and some in the sky — flying his plane. Larry serves as President of the TBM Owners and Pilots Association."

Business Insider has made multiple calls to Buckingham to ask if any staffers were on board. We have not received a response.

The North American Aerospace Defense Command (NORAD), which had fighter jets escorting the plane before it entered Cuban airspace, said the people on board may have been suffering from hypoxia, or oxygen deprivation. Hypoxia can occur when aircraft cabins become depressurized and supplemental oxygen systems do not engage in time.

Popular from BI Prime

Close iconTwo crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification.Check mark iconA check mark. It indicates a confirmation of your intended interaction.